用失重法、扫描电镜(SEM)、X射线能谱(EDS)及X射线衍射能谱(XRD)对N80抗硫油管钢在CO2、微量H2S及高浓度Cl-条件下的腐蚀行为进行了研究.结果表明,在本实验条件下,腐蚀反应以H2S腐蚀为主;在膜的形成过程中FeS腐蚀产物膜优先形成,并进一步阻碍具有良好保护性的FeCO3腐蚀产物膜的形成;腐蚀产物膜疏松、平均腐蚀速率较大,且有轻度局部腐蚀发生;溶液中高浓度的Cl-及材料中高含量的Cr元素会使N80抗硫钢局部腐蚀倾向加大.
参考文献
[1] | Fierro G,Ingo G M,Mancla Fi.XPS-investigation on the corrosion behavior of 13Cr martensitic stainless steel in CO2-H2S-Cl-environment[J].Corrosion,1989,10:814. |
[2] | Masamura K,Hashizume S,Sakai J.Polarization behavior of high-Aaloy OCTG in CO2 environment as affected by chlorides and sulfides[J].Corrosion,1987(6):359. |
[3] | 周计明.油管钢在含CO2/H2S高温高压水介质中的腐蚀行为及防护技术的作用[D].西安:西北工业大学,2002.26. |
[4] | Ma Houyi,Cheng Xiaoliang,Li Guiqiu,et al.The influence of hydrogen sulfide on corrosion of iron under different conditions[J].Corrosion,2000 (42):1669. |
[5] | Vedage H,Ramanarayanan T A,Mumford J D,et al.Electrochemical growth of Iron sulfide films in H2S-saturated chloride media[J].Corrosion,1993,49 (2):114. |
[6] | Wu Y M.Applying process modeling to screen refining equipment for wet hydrogen sulfide service[J].Corrosion,1998,54(2):169. |
[7] | Kimura M,et al.Sulfide stress cracking of line pipe[J].Corrosion,1989,45 (4):340. |
[8] | Huang H H,Tsai W T,Lee J T.Electrochemical behavior of A516 carbon steel in solutions containing hydrogen sulfide[J].Corrosion,1996,52 (9):708. |
[9] | G Schmitt.CO2 corrosion of carbon steel[J].Corrosion/84,Houston:NACE,paper No.1. |
[10] | 张承中.金属的腐蚀与防护[M].北京:冶金工业出版社,2000.105. |
[11] | 《油气田腐蚀与防护技术手册》编委会.油气田腐蚀与防护技术手册,下册[M].北京:石油工业出版社,1996.6. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%